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  1. #1
    Member bCody's Avatar
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    Interesting Trolling Battery Question...

    I took all 3 of my trolling batteries out last night to replace.. I bought this boat last year, so it is, as it came.

    Everything was pretty normal until I found one negative lead going from my 1st trolling battery to the negative post of my cranking battery. I had never seen this before.

    Is this common for any of you guys? I'm assuming they are trying to ground that connection to cause less interference for the front graph possibly?
    Cody // 2011 Phoenix 721

  2. Electrical/Wiring/Trolling Motors Moderator CatFan's Avatar
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    #2
    Yes, it's there to reduce interference. If you have a US2 TM, you don't want to do it. You also need to be certain you only use the battery with the negative lead on it if you need to jump start your outboard or ugly things will happen.
    If you have integrity, nothing else matters. If you don't have integrity,
    nothing else matters.​

  3. Member bCody's Avatar
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    #3
    I do have a US2 in my trolling motor, and use it...
    Cody // 2011 Phoenix 721

  4. Electrical/Wiring/Trolling Motors Moderator CatFan's Avatar
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    #4
    Quote Originally Posted by bCody View Post
    I do have a US2 in my trolling motor, and use it...
    The fuse will be blown in the head and the internal noise reduction circuit is disabled because of the ground connection.
    If you have integrity, nothing else matters. If you don't have integrity,
    nothing else matters.​

  5. Member
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    #5
    Was it a heavy lead or small, say #14 or so?